Porsche RENNKRAFT Modular Headers With HJS Catalytic Converters For Porsche 981 Boxster (2013-2016), 981 Cayman (2013-2016) Models.

These CAD-designed and USA-Patented modular headers represent the ultimate solution for Porsche Cayman or Boxster owners seeking significant power gains and an enhanced sports car sound. Our patented RENNKRAFT modular design incorporates a quick-release V-band connector, allowing you to effortlessly switch between our HJS German-Imported, European Certified, and European Homologated 200-cell catalytic converters for street use and cat bypass "straight pipes" for dedicated Race Track competition ONLY. RENNKRAFT, meaning "race power" in German, embodies the innovative precision engineering that delivers both street-legal, EPA-compliant high-performance catalytic converters and true racetrack functionality in one exceptional package.

SOUND:

When equipped with Fabspeed-imported HJS HD 200-cell catalytic converters, you'll experience a significantly more aggressive exhaust note with a raw, high-pitched Flat-6 sound. Higher frequency tones become more defined, and off-throttle burbles are more robust and transparent. Installing the cat bypass pipes prepares your vehicle for all-out Race Competition, allowing you to preserve your catalytic converters from sustained, high-abuse competition. While not excessively loud, the sound becomes incredibly aggressive and race-bred, completely transforming the character of your car. Please note: Cat bypass pipes are 100% illegal to be sold and installed on street-driven cars.

FEATURES:

• Premium Construction: Crafted from CNC mandrel-bent T304L stainless steel for optimal flow and durability.
• US EPA and European Compliant Catalytic Converters: Features HJS German catalytic converters that are US EPA compliant and European certified and homologated for street legality when installed.
• Industry-Leading Design: Fabspeed is the World's Very First Company to design, engineer, and 3D scan aftermarket headers for water-cooled Porsche cars, ensuring unparalleled experience and superior quality.
• Significant Performance Gains: Delivers impressive power and performance increases of +25 HP and +20 ft-lbs of torque.
• Weight Savings: Saves 2 lbs / 0.9 KGs with the Sport Cats installed and 7 lbs / 3.2 KGs with the Cat Bypass pipes compared to the factory headers.
• Patented Modular Design: Awarded a USA Patent for its innovative modular design utilizing a quick-release V-band clamp for rapid swapping between catalytic converters and cat bypass pipes.
• QUICKTRACK Compatibility: The RENNKRAFT system allows for the quick installation of our QUICKTRACK cat bypass pipes specifically for racing and dedicated racetrack-only competition events.
• Unique Patented System: The RENNKRAFT system holds a US Patent and is the only system of its kind available worldwide.
• Track Protection and Street Compliance: Switching to cat bypass pipes for track events prevents catalytic converter degradation during intense competition. Additionally, if your catalytic converter eventually fails due to high mileage, you can purchase new HJS catalytic converters for quick installation, restoring US EPA emissions compliance and street legality.
• Optimized Flow: Incorporates F1-style high-velocity merge collectors for maximum exhaust scavenging and power.
• Perfect Bolt-On Fitment: Engineered from precise 3D scans of the OEM headers to ensure a perfect and hassle-free bolt-on installation.
• High-Performance Catalytic Converters: Utilizes German-made and imported HJS HD trimetallic 200-cell EUROPEAN Certified catalytic converters for optimal performance and reliability.
• Maximum Flow Capacity: Designed with the largest catalytic converters that will fit in the factory location for unrestricted exhaust flow.
• Near Straight-Pipe Flow: Flows an impressive 93% of a straight pipe, confirming through dyno testing that there is absolutely no power gained by running illegal cat bypass pipes.
• Guaranteed No CEL (with Sport Cats): Optimized for maximum performance without triggering a catalyst-generated check engine light when the HJS Sport Cats are installed.
• No ECU Tune Required: Designed for simple bolt-on installation and immediate performance gains without the need for an ECU tune.
• Exclusive HJS Importer: ONLY FABSPEED USA is exclusively authorized by HJS Emissions Germany to import and distribute their world-class catalytic converters.
• Universal Exhaust Compatibility: Designed to fit seamlessly with any brand of aftermarket exhaust system that is compatible with the factory headers.
• Expert Engineering: Backed by over 25 years of dedicated experience in air-cooled and water-cooled Porsche design, resulting in meticulously hand-crafted headers.
• Simple DIY Installation: Engineered for straightforward do-it-yourself bolt-on installation – simply unbolt the old headers and replace them with the new Fabspeed headers.

Returns subject to a 25% restocking fee.